Automatic switchboard.



Patented Aug. 24. 1909.

2 SHEETS-SHEET 1.

A. & P. JA MBOR. AUTOMATIC SWITGHBOARD. APPLICATION FILED MAR. 31, 1909.

Patented Aug. 24, 1909. 2 SHEETSSHEET 2.

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.. AUTOMATIC SWITGHBOARD.

"To all whom; it may concern.

- Be-it known that we,". ALEXANDER 'JAMBoR and PAUL Jiimnou, citizens ofAus'tria-Hungary, 'and'residents of Bathbeach, county of qKings and State of N ew' York, have .invented certain new and useful. Improvements inAutomatic Switchboards, ofwhich the following is a full, clear, and exactsp'ecification,-reference being bad to ;the accompanying drawings, wherein- Figure l is a front elevation, and Fig. 2 a rear elevation of our improved automatic switchboard; Fig. 3 is a diagramthereof and of the electrical system ,operated bythe switchboard, Fig. 4 is a detail sectional view showing the construction of .the movable contact pieces and the mannerof mounting them on the switchboard.

()ur. invention relates to switchboards for electrical conduits, and consists of'thenim proved automatic switchboard, as shownin the accompanying drawings, and hereinafter described with referencejthereto, wherein, by the operationsof the improvements, constituting our invention, any lamp or series of lamps, or a number of suchlamps .or series, 1 may be lighted. or extinguished bythe automatical actionof the device-.at any predetermined time.

designates the ,gelectrical current generator, j B the. switchboard; a is the .electrical Iconduit from the; enerator.A, b the returncom duit; C, Dang E, separate. lamp .circuits,;in' this instance arranged in three-separate corn 1 partments.

. C, D, and Eflare sockets, from whichthe electrical. conduits c, c, (2,.(1, a. and e, wherein ;the .series of lamps .(indicated by crosses) .a.re connected, start and terminate. Theselsqckets C, .D and E arev adapted .to

receive the plugs 1, 2,. 3,.etc. connected with the movable contact pieces g, 9 etc. by wires a,.and with the return conduit 7) to the generator by. wires .7) as furtheron more fully explained. Contact pieces f, etc. to

.- arefixed in the switchboard; the movablecontact pieces 9, gfletc. to g are mounted -..on .the .swi-tchboard,. as shown in detail in F 4. Thefixed contact-- pieces f to f are connected in theconduit-airom-the genera- ..tor, the contact piece 1 formingitsterminus.

. Plugs 1,2, etc.- to .12. are. fitted to be set in -.sockets C, D. and E. Plugs 3, 6 and 8 are shown set -in,.in the sockets. E, C and D, -respectively.

Specification (ii Letters Patent. Application filed-larch 81, 1909.-

.the movable contact pieces may be Referring toF-ig. 3. ofthe .drawings iy or changed .eonstruction of such variable transmissions -is-no part of.our.1nvent1on, and any of the lamps in the gronps.

the lamps of, group D. to 8 .andt .of group E .to

E Patented-Lan 24 1909. Serial No. 486,877.

a are electrical conduits connecting the plugs with the movable contact pieces g 9*, etc, and b are return conduitsfromthe plugs to the return conduit 1). There .are as many ofsuch plugs provided as there vare movable contact pieces, eachone of the latter being connected, with .one of these plugs. The movable contact pieces g, 9 etc...arerigidly connected to studslv, projecting through the switchboard .B and mounted in brackets 7', secured to .the switchboard B by bolts 9. .Arms Z are rigidly connected to the ends of studs 7c and the free. ends :of arms Z are pivoted. tobars m (see Fig. B)-..so that operated by them. Springs 8 are set on studs 7c between the switchboard B- and the collart,

' to drawthe. movable contact pieces against,

or rather press them upon,.the fixed. -Pins .n are set in the switchboard-in positionto preventshifting .of the. movable contact pieces g, g etc. beyond. the hired contact pieces f, F, etc..w.hen the switchboard-is set.

An arm' F mounted-onshaft and carrying on its free end, a, pin 7', is sl1own-asthe means for operating .the-movable-eontact pieces after the switchboard is setiorsuch 1 action. as-it-is desired to have 1t perform.

The length ofarin F is calculated so the-pin 3' Will strike against the movable contact pieces,- g,- 9 etc. when shaft 2'. is rotated.

For actuating .the shaft 11 aclock movement is set inthe switchboard, the.'arm F being set on its shaft turnin the hands. In-prac- .tice the. automatic switchboard-may be .pro-

duced withv a :clock. dial on .itsfront .faceas shown in Fig. l,.the hour handofthe clock serving asthe arm. F, the:pi11.j .-being.,.set therein. Arm F may,

however asawelli oe by weight, and its speedregiu ted by suitable transmissions. The

Prop

many known constructions .ofsuch trans .missions may be employed for .thispurpose.

. Om. improved automatic.switchboardmay be used to turn on, or to extiuguishthe orseries 0,. Dnmd. E each at such a time as may be' desired. .The diagramv 3-. shows the .larnps of- .the group C connected to-the-contaet. 16668 elamps f vThis is donebywetting .in themespective plu soon-nested tothe-oon- .tact pieces f f an 7? into thersockets C, D and E in the order stated. -The-switchboard is shown as setfor turning oi? the lamps of the groups successively in the order recited. As the arm F progresses, moving in the direction indicated by the arrow, the pin j set in its outer end, strikes against the movable contact piece g and pushes it off, of the fixed contact piece f, thereby breaking the circuit between the generator A and the lamps of the group C. The same action will be repeated when the arm F reaches the movable contact piece 9 and again when it reaches the movable contact piece 9 The length of the period intervening between the time the switchboard is set and that, at which these actions will take place, depends upon the distance through which the arm F has to travel, and upon the speed of the 1notion of the arm F. The speed of the motion is determined by the mechanism driving the arm; the distance through which the arm F must travel and the order of successionin which it acts to extinguish the lamps of each of the different groups, may be arranged at will, by correspondingly setting the plugs 2, 6 and 8 (or any other) in the sockets C, D and E, the plugs connected to any other set, or sets, of contact pieces may be used for that purpose. To effect the turning on of the current in the conduits of the lamps, the movable cont-act pieces set opposite the hour at vwhich the lamps are desired to be lighted, are set so that the pin j will strike against each of them successively and push it upon the corresponding contact piece. Such a position of the contact piece g is indicated in Fig. 3 in a dotted line. That the movable contact pieces may be set in any desired position by the bars m, was explained above. Then the plugs connecting with the contact ieces, thus set, are inserted in the sockets D and E in the order as the series oflamps are to be lighted.

The switchboard, shown in Fig. 1, is made to represent the dial of a clock and one fixed, and one movable contact piece provided for each. hour number. A raised flange or guard 0 is provided to cover the fixed contact pieces, and plate 32 to cover the movable contact pieces. Pin 3', set in the hour hand F travels in the slot between the guard 0 and the plate 77. In the rim of the switchboard, extendin beyond the dial, are twelve electrically insulated openings, numbered respectively 1, 2, 3, etc. to 12, and through each of these openings are drawn wires a and 6, connecting a plug to each of the movable contact pieces g, 9 etc, and to the return conduits b to the generator. The numbers of the openings correspond with the numbers of the hours as indicated on the clock, and the sockets C, D and E are, ormay be designated, by the numbers or names of the compartments or of groups of lamps connected thereto.

Assuming now that it be desired to light all lamps, and to set the switchboard to extinguish the lamps illuminating the compartment C at midnight, those in compartment D at six oclock and those in compartment E at seven oclock in the morning. To do this, the bars m, m and m are pushed in, whereby the lamps of the said groups are lighted. The armF being operated by a clock movement, will be propelled in the direction indicated by the arrow in Fig. 1 and at twelve oclock midnight, the pm j will strike against the movable contact piece g'and progressing on its motion, will push it off of the contact piece f, thereby breaking the circuit between the generator A and the lamps in the compartment or group C. The lamps in this group are thereby turnedout, and so will be the lamps of the group D at six oclock in the morning when the hour hand of the clock will reach the movable contact piece g", and, progressing on its way,

push it 0E of the fixed contact piece f.

The same operation will be repeated at seven oclock in respect to the movable contact piece f and the lamps of the group E. The clock movement is not necessary for such operation'o the switchboard, the clock serving here on y as a convenient means of illustration, both of a mechanism for operating the switchboard and also for measuring or determining of the time. Any other mechanical movement, and any other means for regulating the speed of the motion, may be employed.

From the description of our improved automatic switchboard, and of the manner of using it, it will also be readily understood, that the same is not limited to any number of groups of lamps, though, of course, a socket must be provided for each group or circuit of lamps, and also that the successive order of the operations may be changed and varied by changing the setting ofthe plugs into the sockets. It should also be understood, that the number of the contact pieces may be more or less than twelve, we having elected to show twelve of them, to

enable us to illustrate the operation of the board by an ordinary clock movement.

e claim as our invention:

1. An automatic switchboard, a series of fixed, and a series of movable, contact pieces and means for setting the movable contact pieces in position in the switchboard; an electrical'current conduit to, and connecting the, fixed contact pieces, terminating with the last one of the series; a return conduit from the switchboard; a series of sockets and electrical current conduits, one from and to each socket; lamps connected in the conduits; a series of plugs; electrical eurreut conduits, one connecting each of the movable contact pieces to one of the plugs and return conduits one from each plug to the return conduit from the switchboard; an arm movably mounted on the switchboard and means connected with the arm adapted to engage with the mo able conact pieces; and mechanism for moving the arm.

An automatic switchboard, a series of fixed, and a series of movable, contact pieces and mains for setting the movable contact pieces in position in the switchboard; a mechanically actuated arm, adapted to traverse the switchboard and means connected with the arm for engaging the movable pieces; an electrical current conduit to, and connecting the, fixed contact pieces, terminating with the last one of the series; a return conduit from the switchboard; a series or sockets and electrical current conduits, one from and to each socket; lamps connected in the conduits; a series of plugs and electrical current conduits. one connecting each of the movable contact pieces to one of the plugs and return conduits one from each plug to the return conduit from the switchboard.

3. An automatic switchboard, a series of fixed. and a series of movable contact pieces in the switchboard an electrical current conduit to, and connecting the, fixed contact pieces, terminating with the last one of the series; a return conduit from the switchboard; a series of sockets and electrical current conduits, one from and to each socket; lamps connect ed in the conduits; a series of plugs and electrical current conduits, one connecting each of the movable contact pieces to one of the plugs, and return conduits, one from each plug to the return conduit from the switchboard; an arm, adapted to engage with the movable contact picces, mova'bly mounted on the switchboard means for setting the movable contact pieces in position to be. engaged by the arm; and mechanism for moving the arm at a predetermined uniform speed.

4. An automatic switchboard, a series or" fixed. and a series of movable contact pieces in the switchboard; an electriail current conduit to,-and connecting the, fixed contact pieces, terminating with the last one ot' the series; a return conduit from the switcln board; a series of sockets, electrical current conduits, one from and to each socket; lamps connected in the conduits; a series of plugs and electrical current conduits, one connecting each of the movable contact pieces to one of the plugs, and return con- (luits, one from each plug to the return conduit from the switchboard: means for setting the mo able contact pieces in position; a clock movement and means, operatively connected therewith, for shifting the movable contact pieces from contact with, or to contact with the fixed conta'ct pieces.

ALEXANDER JAMBOR. PAUL JAMBoR. WVitncsses LnoN R. James, V. M. BRAUN. 

